Question

why are chemical change called irreversible change​

Answer 1

Answer:

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Explanation:

A change is called irreversible if it cannot be changed back again. In an irreversible change, new materials are always formed. Sometimes these new materials are useful to us.

Answer 2

Chemical change r called irreversible change because:
Chemical change basically changes the chemical properties of substance thus the following substance transforms into a different substance(as it has different chemical properties)
Eg- you can’t unburn the wood.
You can’t reverse the chemical change as chemical changes result in different substances, that cannot be undone.